(warning - politics below)
Although if left tried to frame men’s issues as female issues, I personally would be offended.
A better way would be to start with non-controversial male issues (mental help to prevent suicides? homelessness?), and work up from there (equal taxation & riterement, military, equal treatment in family courts, support in domestic violence cases…)
As a side note - I don’t get why left is so afraid of pissing radical feminists off. It’s not like they will begin to vote right wing.